I don't know if I need to align the bottom sprocket. I was told that you need to align both cams on top and the bottom one too. I noticed when trying to figure out how to get down there that the chain slips on the bottom socket. Not really slip but the chain moves around it and you can only move the chain cwhen you feed the other side of the chain. I haven't seen the bottom sprocket move when moving the chain.
do I need to align the bottom one? Or just the two cams on top?

 

Same answers (and questions) as last time

https://www.jaguarforums.com/forum/s...-align-178930/

 

Have you installed new tensioners?
Those look all old and heat damaged?
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Chains never taken off
nothing got out of alignment At least I don't think so, besides the two cams that I took off.
I'm just wondering If I need to align the bottom sprocket when putting it back together. I'm doing this myself I don't know if you guys ever done it yourself but that's why I'm here. This time I brought pictures for more clarity

 

yeah the engine overheated a few weeks back. No new tensioners were installed. It gave me a check engine light but it went away I'm thinking it was just the overheat that caused the light to turn on. All the codes were giberish just one of them pulled up as ahead gasket at autozone . I'm not sure if they scammed me I ended buying two. Check engine light is gone too.

 

If I might be so bold as to ask if you have referred to the Workshop Manual regarding the replacement of the primary and secondary timing chains and associated parts?

Did you perform a compression check prior to disassembling the engine?

To correctly set the camshaft timing, the crankshaft must be held in place by the holding tool AFTER the front pulley has been removed. Under no circumstances is the crankshaft front pulley bolt to be loosened using the crankshaft holding tool to hold the crankshaft against rotation. Damage to the engine drive plate will result.

Remove the timing cover and replace the primary timing chains, guides and tensioners as well.

During reassembly, use the camshaft holding tool(s) to correctly set the camshafts relative to the crankshaft before installing the primary and secondary timing chains.

 

I'm putting it back together. I haven't touched the crankshaft at the bottom nor have I turned it. I just pulled the cams on top upward and the timing chain came off.
The chain is still on the bottom crankshaft.
maybe were on the wrong page but look at the pictures it's just two cams off the car.
I never took out the front cover of the engine just the top valve covers. I didn't do any repairs it was a waste of time.
now I'm just trying to put it back together and the two cams back in place.
my question is, if I need to align the bottom cam if I never touched it in the first place? The chain still feeds downward without the cams and it doesn't move the bottom sprocket so that's why I'm curious about the alignment to the bottom sprocket.

I'm new to this. I didn't do a compression test before dismantling the engine. I should've though because that would tell me if the head gaskets is the problem. I also underestimated how big a head gasket job is. The check engine light went away though so I'm assuming it's all good.
when I put the car back together I'm going to run a compression test. I'm just wondering If I can align the two top cams and put the chain back on without aligning the bottom sprocket because I never touched it. Nor turned the cams to mis-align it.

 

Ramiro,

No offence but you're in way over your head. The crankshaft must be set in a precise position prior to setting the cams into their own position.

Before you do that replace the chain tensioners, they're toast.

 

With all due respect, you should have a competent Jaguar specialist put the cams and timing chain assemblies back together.

Performing a compression test after the fact is a waste of time.

 

You CAN'T ignore the tensioners and yours are old and bad.
Why even put it back together when you know it's all worn out?
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now that everyone has told me the tensioners are bad I will do that. Thank you

 

I uploaded my copy of the engine course 168 from Jaguar training. I had my paper copy converted to .pdf and it is on this forum as well as Gus's site.

All the info to assemble the engine is in that publication. (line up the copper colored links)

bob

 

Do you know where to get the entire kit?
Again Abono is the expert but there are a bunch on EBay.

Be SURE you get the complete set! Upper and lower as well as the chains and guide rails.

This might help.
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To confirm this is the V6 engine correct? Very few complaints regarding tensioners (usually reserved for the V8 4.0) but after looking at the pics I would swap all out...

 

Thank you I appreciate it!

 

Go here and get a copy of the JTIS (Jaguar workshop manual) it will tell you how to do it all step by step.
https://www.jaguarforums.com/forum/s-type-s-type-r-supercharged-v8-x200-15/details-win7-64-bit-new-install-method-new-jtis21-s-type-archive-66031/